There are convenient public transportation lines from all the
railway and bus stations to most parts of the city. Tickets are not
time based, you have to validate one on each vehicle you take
(except on the metro). On
many buses you can only get up at the front door and have to show your
ticket to the driver. A single ticket is 350Ft (about 1.2€), you
can buy 10 for 3000Ft (about 10€). Ticket vending
machines accept cash and cards. Many drivers also sell
tickets but that’s more expensive and only cash is accepted. There are 1- and 3-day passes
too, the latter costs as much as 13 single tickets.
More about
prices… You can always take a taxi,
fares
are fixed.

If you happen to find accommodation further from the campus, you
may check public transport timetables with
BKK
Futár. Enter your departure point in slot A, the link contains
your destination in slot B. The metro stations closest to the
campus are Astoria and Kálvin tér.

You can also rent bikes, but
make sure to check the weather before your decision.